Lars Niklas Sundström (born 6 June 1975) is a Swedish former professional ice hockey player who started his professional career in Modo Hockey.

He was traded to the San Jose Sharks in 1999, and to the Montreal Canadiens in 2003.

Sundström plays forward and specializes in defensive roles.

When he was a junior player he formed a line in Modo with future NHL stars Peter Forsberg and Markus Näslund.

Modo still missed the playoffs that year, despite Sundström having the best plus-minus rating in the entire series.